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Crystals are natural, crystals and synthetic crystals of points, a lot of people very difficult to distinguish between natural crystals jewelry and synthetic crystals jewelry.
Synthetic Crystal biggest feature is the nuclear sub. Synthetic crystal nucleation is better to determine if, as nucleation is generally colorless columnar long board, with the surrounding synthetic crystal clear boundaries. But recently the market a number of colorless synthetic crystal, a result of nucleation and synthetic crystal are colorless, coupled with the nuclei in some of the natural features or inclusions in the nuclei and the synthesis of a number of air bubbles between the crystal, so that did not experience some The people are very easily mistaken for a natural crystal, careful observation reveals that nuclei in the package body exists only within the sub-core columns and surrounded by an invisible wall there is a stopped, rather than the extension of the feeling of breaking. Between the nucleation and synthetic crystal nucleation along the wall of the distribution of air bubbles are formed parallel to each other "bubble wall." Some of the bubble was tadpole-like, head over to the wall outward tail arrangement. Natural crystal is also often arranged in groups along a surface inclusions appear, but the face is often the single, there are ups and downs, and the composition of the surface of inclusions in the gemstone jewelry under a microscope will be found in the two-phase inclusions, not just the bubbles. The difference is obvious.
Synthetic crystal color composite crystal, especially the second characteristic is the color uniformity. A whole string of crystal necklace color more uniform, especially the yellow crystal series and brown, black synthetic crystal. The natural yellow and brown, black crystal color often uneven one. Crystal is not only a natural-color uneven, and often tea color (except for brown crystal outside), more interesting is that in the evening under incandescent light, tea, yellow crystals without a little yellow and brown crystal completely, as if the crystal mix and tea actually bad identification. I have seen the synthesis of citrine jewelry colors are pure uniform, there are individual darker tones, but not with tea color, and will not change color under incandescent light at night.
The third synthetic crystal is characterized by impeccable. A common feature of natural crystal inclusions and cotton, while the synthetic crystal clear. Individual synthetic crystal air bubbles or some solid impurities. Recently, some of the synthetic crystal triangles are often a number of long tubular holes in these pores in the green or red powder. This is characterized by a long tube along a direction parallel, the cross section for the triangles, which are often green or red uneven distribution of powder, in the middle is often empty, a long-barreled end of the first sharp change in trend. But the real crystal is a natural fat-containing tourmaline, actinolite, rutile and other minerals, crystals; these minerals have their own shape, such as actinolite of the "bamboo-like" form. They are wrapped in crystal, the non-directional random order, the thickness of the length of the name vary, and often accompanied by the inherent natural crystal inclusions and cotton and so on.